Raldi Artono Koestoer
Ganeca Exact Bandung, 1987
Buku Teks
Pollack, Seymour V.
Holt Rinehart and Winston, 1983
Buku Teks
Williams, Carolyn L.
American Psychological Association , 2011
Buku Teks
Wallis, W.D.
Springer, 2012
eBooks
Stapleton, Gerald F.
Tab Books, 1971
Buku Referensi